color of area depending on value | MATLAB IoT Analytics

color of area depending on value

May 7, 2019
10:50 am

obod0002

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March 13, 2019

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a third question, if I may ...

I'm using an area to display the difference between two lines.

diff = line1(1:maxCount) - line2(1:maxCount);
a = area(line1.Timestamps(1:maxCount), diff(1:maxCount));

How could I change the color depending on the resulting value? E.g. everything in 'green' except if values '<5' which should be displayed in 'red'.

The area starts below zero:
set (a, 'BaseValue', min-2.5)

Thanks for your help

May 7, 2019
1:02 pm

cstapels

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This example shows conditional formatting:
https://www.mathworks.com/help/thingspeak/Plot-Temperature-and-Wind-Speed-on-Two-Different-Axes.html

May 8, 2019
1:41 am

obod0002

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hmm, maybe my question was not as precise as it should have been...
I'm looking for a way to paint an area in two different cvolors depending on its value, e.g. as in this example from my Raspberry Pi where the area is either 'green' or 'red'. The color depends on the result of the maths from 'line1 - line2'.